Sort Trello boards with active boards first

Improves UX by prioritizing boards with cards over empty boards.
Both API and cached results now sort consistently: non-empty boards
appear first, then empty boards, with alphabetical ordering within
each group.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/internal/api/trello.go b/internal/api/trello.go
index cecf0dc..b9391d6 100644
--- a/internal/api/trello.go
+++ b/internal/api/trello.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"sort"
 	"sync"
 	"time"
 
@@ -216,6 +217,16 @@ func (c *TrelloClient) GetBoardsWithCards(ctx context.Context) ([]models.Board,
 
 	wg.Wait()
 
+	// Sort boards: Non-empty boards first, then alphabetical by name
+	sort.Slice(boards, func(i, j int) bool {
+		hasCardsI := len(boards[i].Cards) > 0
+		hasCardsJ := len(boards[j].Cards) > 0
+		if hasCardsI != hasCardsJ {
+			return hasCardsI // true (non-empty) comes before false
+		}
+		return boards[i].Name < boards[j].Name
+	})
+
 	return boards, nil
 }